IFITM proteins can inhibit several viruses, but effects on SARS-CoV-2 infection are not well understood. Here, the authors show that endogenous IFITMs support SARS-CoV-2 infection in different in vitro models by binding spike and enhancing virus entry.
- Caterina Prelli Bozzo
- Rayhane Nchioua
- Frank Kirchhoff